Desktop type servo pressing machine

Abstract

The utility model discloses a desktop type servo press-fitting machine which comprises a bottom plate, a safety fence, a press-fitting mechanism, a press-fitting jig, a bearing and a bearing seat, the press-fitting jig is fixedly arranged at the center of the bottom plate, the press-fitting mechanism is arranged above the press-fitting jig, the bearing seat to be assembled is correspondingly placed on the press-fitting jig, the press-fitting mechanism moves up and down in the vertical direction, and the bearing seat to be assembled is arranged on the safety fence. Pressing the bearing into the bearing seat; the bottom plate is rectangular, the safety enclosure surrounds three edges of the bottom plate, the safety enclosure encloses the press-fitting mechanism and the press-fitting jig, the edge, without the safety enclosure, of the bottom plate is an operation surface, and an operator puts in or takes out the bearing seat through the operation surface; the bearing press-fitting device can be used for automatically press-fitting a bearing, and has the characteristics of accurate positioning and high safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing installation equipment, and particularly relates to a desktop servo press machine. Background Art

[0002] Bearings are essential components connecting shafts to machine housings. Their performance directly impacts equipment efficiency and lifespan. Press-fitting bearings is the most critical step in bearing installation. A correct press-fitting process ensures a tight connection between the bearings, preventing movement and abnormal wear during operation, and ensuring safe operation. Traditional bearing press-fitting methods utilize hammering, sleeve installation, and heating. These methods require manual hammering or heating of the bearings. During installation, the bearings must be hammered evenly around the bearing and slowly installed onto the shaft or housing bore. This not only incurs high labor intensity and low assembly efficiency, but also poses significant safety risks and cannot guarantee worker safety. Furthermore, manually assembled bearings suffer from inconsistent press-fit quality, relying heavily on the worker's skill, resulting in a high rate of scrapped products. Utility Model Content

[0003] In response to the above problems and technical requirements, the utility model provides a desktop servo press-fitting machine that can automatically press-fit bearings and has the characteristics of accurate positioning and high safety.

[0004] The technical solution of the present utility model is as follows: a desktop servo press machine, including a base plate, a safety enclosure, a press mechanism, a press jig, a bearing and a bearing seat. The press jig is fixedly arranged at the center of the base plate, and a press mechanism is arranged above the press jig. The bearing seat to be assembled is placed on the press jig accordingly, and the press mechanism moves up and down in the vertical direction to press the bearing into the bearing seat. The base plate is rectangular, and the safety enclosure is enclosed on three sides of the base plate. The safety enclosure encloses the press mechanism and the press jig. The side without the safety enclosure is the operating surface, and the operator puts in or takes out the bearing seat through the operating surface. In this solution, the press jig is used to fix the bearing seat to be assembled, and the press mechanism presses the bearing into the bearing seat. Automatic press fitting is not only efficient and labor-saving, but also has uniform press force and is not easy to damage the workpiece. The safety enclosure separates the operator from the press working area, which can protect personnel safety and prevent accidents.

[0005] Furthermore, the pressing mechanism includes a support frame, a servo motor and a vertical screw. The support frame is fixedly mounted on the base plate. A vertical screw is installed at the bottom of the support frame. The top of the vertical screw is connected to the servo motor. The servo motor controls the vertical screw to push it downward. A cylindrical pressing head is provided at the telescopic end of the vertical screw, and the pressing head presses the bearing.

[0006] Furthermore, the safety enclosure comprises a steel frame and a cover plate. The steel frame is fixedly connected to the base plate, and the cover plate is encapsulated on the outer surface of the steel frame. A support beam is installed on the top of the steel frame, and an electrical control box is fixed to the support beam. The electrical control box is electrically connected to the servo motor to control the servo motor's operation. The electrical control box houses the product power supply and control module and the PLC control unit, which can set the product's pressing height and pressing pressure to achieve parameter setting, so that the pressing amount and pressure are more balanced and matched to the requirements of the product to be pressed.

[0007] Furthermore, a set of safety gratings are symmetrically mounted on the steel frames on either side of the operating surface. The safety gratings are electrically connected to the electrical control box and can sense when a hand enters the operating surface. This prevents the operator's hand from accidentally entering the operating surface during operation, potentially causing crushing or burns, thus providing safety protection for personnel.

[0008] Furthermore, the press-fitting jig is connected to the base plate via screws. A latch corresponding to the shape of the bearing seat is provided in the middle of the jig, which is provided with an axial hole. A shaft member, fitted with a bearing, is inserted into the bearing seat. The shaft member aligns with the axial hole, and a press-fitting head presses the shaft member downward into the axial hole, creating an interference fit between the bearing and the bearing seat. The press-fitting jig with a latch allows for rapid positioning of the bearing seat product. The axial hole provides space for the shaft member to be pressed downward. The press-fitting jig and base plate are detachably connected, allowing press-fitting jigs of different specifications to be connected to the base plate for processing different products.

[0009] Furthermore, a start button and an emergency stop button are respectively provided on both sides of the base safety fence, and the start button and the emergency stop button respectively control the start and stop of the pressing mechanism.

[0010] Furthermore, a leveling foot is provided at each of the four corners of the bottom of the base.

[0011] The beneficial effects of the utility model are as follows: the press-fitting machine of the utility model is suitable for the press-fitting of small-sized bearing parts, can be placed on a desktop for use, has a compact structure, is easy to carry and move, is flexible to use, and is highly practical; the electrical control box and the press-fitting machine are concentrated together, and the press-fitting parameters can be set arbitrarily through the electrical control box, and the press-fitting height and force can be accurately set according to the press-fitting requirements of the assembled workpiece, avoiding the situation where the press-fitting is not in place or the press-fitting force is too large to damage the workpiece; the safety grating can effectively prevent injuries caused by personnel misoperation and enhance operational safety. The products pressed by the press-fitting machine are highly consistent, the finished product quality is stable, and the defective rate is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the overall structure diagram of the servo press machine of the utility model;

[0013] Figure 2 This is a structural diagram of the safety enclosure in the present utility model;

[0014] Figure 3 This is a structural diagram of the bottom plate of the utility model;

[0015] Figure 4 This is a diagram showing the matching of the bearing, bearing seat and press-fitting fixture in the present invention;

[0016] Marked in the figure are: safety enclosure 1, steel frame 11, closing plate 12, support beam 13, safety grating 14, press-fitting mechanism 2, support frame 21, servo motor 22, vertical screw 23, press-fitting head 24, press-fitting fixture 3, position 31, shaft hole 32, electric control box 4, bearing 5, shaft 51, bearing seat 6, base plate 7, start button 71, emergency stop button 72, leveling foot 73. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1-4 The figure shows a desktop servo press machine of the present invention, which includes a base plate 7, a safety enclosure 1, a press mechanism 2, a press jig 3, a bearing 5 and a bearing seat 6. The press jig 3 is fixedly arranged at the center of the base plate 7, and a press mechanism 2 is arranged above the press jig 3. The bearing seat 6 to be assembled is placed on the press jig 3 accordingly. The press mechanism 2 moves up and down in the vertical direction to press the bearing 5 into the bearing seat 6.

[0019] The pressing mechanism 2 includes a support frame 21, a servo motor 22 and a vertical screw 23. The support frame 21 is fixedly mounted on the base plate 7. A vertical screw 23 is mounted at the bottom of the support frame 21. The top of the vertical screw 23 is connected to the servo motor 22. The servo motor 22 controls the vertical screw 23 to push it downward. A cylindrical pressing head 24 is provided at the telescopic end of the vertical screw 23. The pressing head 24 presses the bearing 5. The pressing fixture 3 is connected to the base plate 7 by screws. A clamping position 31 corresponding to the shape of the bearing seat 6 is provided in the middle of the pressing fixture 3. The clamping position 31 is provided with an axial hole 32. The shaft member 51 with the bearing 5 is installed in the bearing seat 6. The shaft member 51 corresponds to the axial hole 32. The pressing head 24 presses the shaft member 51 downward into the axial hole 32, so that the bearing 5 and the bearing seat 6 are interference connected. The press-fitting jig 3 with a latching position 31 can quickly position the bearing seat 6 product. The shaft hole 32 provides space for pressing down the shaft 51. The press-fitting jig 3 and the base plate 7 are detachably connected, so that press-fitting jigs 3 of different specifications can be connected to the base plate 7 for processing different products.

[0020] The base plate 7 is rectangular, and a leveling foot 73 is provided at each of the four corners of the bottom of the base 7. The safety enclosure 1 is enclosed on three sides of the base plate 7. The safety enclosure 1 encloses the pressing mechanism 2 and the pressing fixture 3. The side where the safety enclosure 1 is not provided is the operating surface, and the operator puts in or takes out the bearing seat 6 through the operating surface. The safety enclosure 1 includes a steel frame 11 and a sealing plate 12. The steel frame 11 is fixedly connected to the base plate 7. The sealing plate 12 is encapsulated on the outer surface of the steel frame 11. A support beam 13 is provided on the top of the steel frame 11. An electric control box 4 is fixed on the support beam 13. The electric control box 4 is electrically connected to the servo motor 22 to control the operation of the servo motor 22. The electric control box 4 is equipped with a product power supply electronic control module and a PLC control unit, which can set the product pressing height and pressing pressure to achieve parameter setting, so that the pressing amount and pressure are more balanced and match the requirements of the product to be pressed.

[0021] A set of safety gratings 14 are symmetrically mounted on the steel frame 11 on either side of the operating surface. These gratings are electrically connected to the electrical control box 4 and can sense any hand approaching the operating surface. These gratings prevent accidental hand contact during operation, potentially resulting in crushing or burn injuries, thus providing personal safety. A start button 71 and an emergency stop button 72 are located on either side of the base safety fence 1, respectively, to control the start and stop of the press-fit mechanism 2.

[0022] The working principle of the present invention is as follows: the worker places the bearing seat 6 into the positioning position 31 of the press-fitting fixture 3, installs the shaft 51 with the bearing 5 into the bearing seat 6, then exits the safety enclosure 1 with both hands, presses the start button 71, and the servo motor 22 drives the vertical screw 23 to move downward. The press-fitting head 24 slowly presses the shaft 51 into the bearing seat 6 to achieve an interference fit between the bearing 5 and the bearing seat 6. If the worker mistakenly puts his hands into the operating surface during the process, once the safety grating 14 senses that a foreign object has passed through, it immediately transmits a signal to the electric control box 4, and the electric control box 4 controls the servo motor 22 to stop running to protect the worker's safety. If the worker actively presses the emergency stop button 72, the servo motor 22 will also stop immediately.

[0023] The above descriptions are merely some preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes and substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. Desktop servo press, characterized by: It includes a base plate, a safety enclosure, a pressing mechanism, a pressing jig, a bearing and a bearing seat. The pressing jig is fixed at the center of the base plate, and a pressing mechanism is arranged above the pressing jig. The bearing seat to be assembled is placed on the pressing jig accordingly. The pressing mechanism moves up and down in the vertical direction to press the bearing into the bearing seat. The base plate is rectangular, and the safety enclosure is enclosed on three sides of the base plate. The safety enclosure encloses the pressing mechanism and the pressing jig. The side without the safety enclosure is the operating surface, and the operator puts in or takes out the bearing seat through the operating surface.

2. The desktop servo press according to claim 1, characterized in that: The pressing mechanism includes a support frame, a servo motor and a vertical screw. The support frame is fixedly mounted on the base plate. A vertical screw is installed at the bottom of the support frame. The top of the vertical screw is connected to the servo motor. The servo motor controls the vertical screw to push it downward. A cylindrical pressing head is provided at the telescopic end of the vertical screw, and the pressing head presses the bearing.

3. The desktop servo press according to claim 2, characterized in that: The safety enclosure includes a steel frame and a covering plate. The steel frame is fixedly connected to the bottom plate, and the covering plate is encapsulated on the outer surface of the steel frame. A support beam is provided on the top of the steel frame, and an electric control box is fixed on the support beam. The electric control box is electrically connected to the servo motor to control the operation of the servo motor.

4. The desktop servo press according to claim 3, characterized in that: A group of safety gratings are symmetrically provided on the steel frames on both sides of the operating surface. The safety gratings are electrically connected to the electric control box. The safety gratings can sense human hands reaching into the operating surface.

5. The desktop servo press according to claim 4, characterized in that: The press-fitting jig is connected to the base plate by screws. A clamping position corresponding to the shape of the bearing seat is provided in the middle of the press-fitting jig. The clamping position is provided with an axial hole. The shaft member with the bearing is installed in the bearing seat. The shaft member corresponds to the axial hole. The press-fitting head presses the shaft member downward into the axial hole to make the bearing and the bearing seat interference connected.

6. The desktop servo press according to claim 5, characterized in that: A start button and an emergency stop button are respectively provided on both sides of the bottom plate safety fence, and the start button and the emergency stop button respectively control the start and stop of the pressing mechanism.

7. The desktop servo press according to claim 6, characterized in that: A leveling foot is respectively provided at the four corners of the bottom of the base plate.

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